I reinstalled Windows 10-64 on a new HD because my old one was dying. I reinstalled Blender 2.76 & 2.49 as I use both. I installed Python 3.whatever & 2.7.whatever. 2.76 sees python, 2.49 doesn't. I then installed python 2.6, Blender 2.49 still didn't see python. I installed both 32 & 64 bit pythons & tried both 32 & 64 bit Blender 2.49. I set the environment variables to point to the python installs, still no go. When I point to 2.6 then Blender 2.76 won't run because it wasn't the version it came with.

Before I reinstalled Windows both blenders worked w/o issue & I had python installed. I'm not sure what I could be missing. I still use 2.49 for id game moddeling because it's got exporters for all the old games, but not I can't run the exporters.

I do all my D3 work in 2.49. In fact, all my id game work. I use the latest one to load up new blends. I'm one of those "throwbacks" who took ~6 months to learn 2.49 just before they released the new UI.

So far there isn't anything I can't do in 2.49 & the lack of id game support (from Quake to D3) isn't convincing me to move forward. I'm sure 2.7 has some features that would help animating though.